Pump.



R. CONHADER.

PUMP.

APPLICATION FILED MAR. 30. m4.

Patented Apr. 4, 1916.

7 Qvi bmcaoeo ofthe pump. Fig. 2 a similar sectionof a portion. of oneof the sand traps. Fig.3 a section on the line 3-3 in Fig. 1. Fig. 4 asection on the line in Fig. 1. Fig. 5 a section on the line 5 5 inFig. 1. Fig. 6 a section on the line 66' in Fig. 1. Fig. 7 a

section on the line 7'? in Fig: 1.

lllfi llillll.) dTATFlEi PATENT @li lt ltdhl.

RUDOLPH CONRADER. OF ERIE, PENNSYLVANIA.

PUMP.

1,178,217. Specification of Letters Patent I Patented Apr. 19113;.

Application filed March 30, 1914. Serial No. 828,144.

T 0 all whom it may concern:

Be it known that I, RUDOLPH Connannn, a,citizen of the United States,residing at Erie in the county of Erie and State of Pennsylvania, haveinvented new and useful Improvements in Pumps, of which the following isa specification.

This invention relates to pumps, and 0611- sists in certain improvementsin the construction thereof as will be hereinafter fully described'andpointed out in' the claims.

Theinvention is illustrated in the accompanying drawings as followsFigure 1 shows a central vertical section Fig. 8 an elevation of thedischarge tube of'the pump, the same being partly in section.

1 marks the working barrel, 2 the standing valve and 3 the pump plunger.The pump plunger has a sleeve This sleeve is provided with a shoulder 5in its upper end' and the upwardly extending cupsG. 8 and 1t) and thespacing rings 7 and 9 are arranged on the sleeve 4. A spacing ring-11 isarranged below the cup 10 and the reverse cup 12 is arranged below thering ll. The cups are clamped in place on the sleeve l by the plungerbottom '13 which is screwed on to the bottom of the sleeve 4. The lowercup 12 has the beveled edge 14. the bevel extend ingz inwardly, that isto say. the sharp edge of the bevel is on the inside of the cup. Thisbeveled edge 14; extends into an annular groove 15 in the bottom 13.This annular groove makes such a fit with the bevel 14 that it does notprevent the outward movement of the Wall of the cup 12 so as to form ajoint with the working barrel but it does prevent the spreading of thewalls of the cup so as to come in contact with the tubing when theplunger is being inserted in the well.

It will be noted that the spacing ring 11 has concave surfaces so as toconform to the shape of the lowest upwardly extending cup and thereverse cup. It will also be observed that the plunger bottom 13 has an(37in tension 13 extending upwardly into the cup 12. The purpose of thesha' 'iiuc of the spacing ring 12 is to give proper support to the andbottom 13 and the cup opposite faced cups an extension 13 is to so a.-.rfour cups will be firmly olar tom'on the same length of t be c. thatwould be used with four cups all i ing upwardly. This is of iiu'portanaethat it permits of the applications: feature of my invention. to plungeralready in use, the only new parts red for this feature being thespwring; rin

w h the ward bevel.

The plunger bottom has tendinglip 16 in which is arranged a perforation17. A. screw 18 extends through this perforation. It has a shoulder 19which engages the lips 16 and prevents the withdrawal of the screw. Astem 20 extends upwardly from the bar 20 in the bottom and the-spring 21isarranged between "the bar 20 and the head or shoulder 19 so that thescrew 18 is forced downwardly with a yield-- mg pressure. The screw isadapted to enter the screw threaded perforations 22 in the top of thestanding valve 2 so that the strtnding valve may be pulled with theplunger.

The upper end'of the plunger has a screw threaded portion 93 on whichthe crown 2 is secured. The seat 25 is secured by the crown as it isscrewed to place. The ball valve 26 operates on the seat 25 and iscarried by the crown. A tube 27 is screwed into the top of the'crown. Asand trap 28 is formed around. the tube 27 on the crown. The sand trapis provided with the clearing perforations 2.). The bottomof the sandtrap has the guide ways 30 forming slanting surfaces leading to theperforations. A collar 31 is screwed onto the tube 27.;1This 001- I laris internally and eaten... y screw threaded and the discharge tifoe 3'2is screwed into the internal thread. This tube 32 has the jet openings33 which are directed into a sand trap 34. The upper end of the tube isprovided with a ring 2-35 forming a loose fit with the tubing and thetube 32 has the inwardly exa ,suckerrod connection in the form of a cap36. v

In order to assure a filling of liquid back of the lower cup 12 shouldthere be a sealing between the beveled. edges 14 and. i5 1 providepassages 15 leading through the hot- 7 tom 12%.

I do not claim in this application the form of sand trap shown nor thespecial Stilt? structure of the standing valve as these form the subjectmatter of separate applications filed on even date herewith 820,143, and#828,145.

What I claim as new is 1. In a pump, the combination of a barrel; and aplunger in the barrel comprising a series of cups, one of said cupsbeing reversed and having its edge beveled inwardly.

2. In a pump, the combination of a barrel; a plunger in the barrelcomprising a series of cups, one of said cups being reversed and havingits edge beveled; and a ring overlapping the beveled edge and lockingthe cup against spreading.

3. In a pump, the combination of a barrel; a plunger in the barrelcomprising a series of cups, one of said cups being reversed and havingits edge beveled invvardly; and a plunger bottom adapted to clamp thecups, said plunger bottom having a ring overlapping the beveled edge ofthe reverse cup and looking the reverse cup against spreading.

at. In a pump, the combination of a barrel; a plunger in the barrelcomprising a series of cups, one of said cups being reversed and havingits edge'beveled; a'ring over lapping the beveled edge and locking thecup against spreading; and a passage leading through the ring forsupplying liquid to the inner surface of the reverse cup.

Ina pump, the combination of a barrel; a plunger in the barrelcomprising a series of cups, one of said cups being reversed and havingits edge beveled inwardly; and a plunger bottom adapted to clamp thecup, said plunger bottom having a ring overlapping the beveled edge ofthe reverse cup and locking the reverse cup against spreading, said ringhaving a passage through it for supplying liquid to the inner surface ofthe reverse cup.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

RUDOLPH CONRADE R.

lVitnesses B. M. HARTMAN, Tnonas C. MILLER.

